Just Cause 3 Teaser Image Released?

Is a new Just Cause game coming out this year? It may be, according to a tweet from Avalanche Studios Christofer Sundberg. He has released an image that looks like it might be Just Cause 3.

"We're making awesome games at #avalanchestudios! This year will be awesome! #yearoftheavalanche," tweeted Sundberg.

The attached image seems to show a man driving a motorcycle with a sidecar. At the same time, he's also kicking a man off of the cycle. That seems like the sort of high-speed acrobatics that Just Cause hero Rico Rodriguez is famous for. The old-timey motorcycle confuses me a bit, though. Is he in a really backwards country, or is this a Just Cause prequel starring someone else?